Squid through 4.14 and 5.x through 5.0.5, in some configurations, allows information disclosure because of an out-of-bounds read in WCCP protocol data. This can be leveraged as part of a chain for remote code execution as nobody.
| Software | From | Fixed in |
|---|---|---|
| squid-cache / squid | - | 4.14.x |
| squid-cache / squid | 5.0 | 5.0.5.x |
| fedoraproject / fedora | 33 | 33.x |
| fedoraproject / fedora | 34 | 34.x |
| debian / debian_linux | 10.0 | 10.0.x |
| debian / debian_linux | 11.0 | 11.0.x |